There are at least twelve different bands that go by the name “Ethereal”:
These are photos from concerts where Ethereal played, so they may be of other bands that played the concert as well.
Bloodstock Open Air 2015 Aug 6 - 9, 2015 Walton-on-Trent, UK Uploaded by Gwyn Williams
Marduk / Belphegor / Bliss Of Flesh / Ethereal Feb 23, 2015 Plymouth, England, United Kingdom Uploaded by Josh King
Jared / Apehanger / Ethereal / G.O.T.V. May 29, 2010 Leiden, South Holland, Netherlands Uploaded by Hans Keijzers